Twitter will now let you pay to undo tweets and read ad-free news in the US

Twitter Blue, the company’s subscription service, is adding new features while expanding to new countries and platforms. The service first launched in June in Canada and Australia on iOS, but starting Tuesday, Twitter Blue will be available in the US and New Zealand and on Android and the web.

Perhaps the most useful Twitter Blue feature is an undo button, which lets you recall tweets before they send. (I can think of a few times that would have saved me from an embarrassing typo.) Other features in the initial launch included a...